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2000 (two thousand) is a natural number following 1999 and preceding 2001. It is: ... 2997 – 1000-gonal number [83] 2999 – safe prime; Prime numbers
A list of articles about numbers (not about numerals). Topics include powers of ten, notable integers, prime and cardinal numbers, and the myriad system.
The number 1000 is also sometimes described as a short thousand in medieval ... writing "$30k" for $30 000 or denoting the Y2K computer bug of the year 2000. ...
This is a list of articles about prime numbers. A prime number (or prime) is a natural number greater than 1 that has no positive divisors other than 1 and itself. By Euclid's theorem, there are an infinite number of prime numbers. Subsets of the prime numbers may be generated with various formulas for primes.
In British usage, this style is common for multiples of 100 between 1,000 and 2,000 (e.g. 1,500 as "fifteen hundred") but not for higher numbers. Americans may pronounce four-digit numbers with non-zero tens and ones as pairs of two-digit numbers without saying "hundred" and inserting "oh" for zero tens: "twenty-six fifty-nine" or "forty-one oh ...
c. 1000 — Pope Sylvester II introduces the abacus using the Hindu–Arabic numeral system to Europe. 1030 — Ali Ahmad Nasawi writes a treatise on the decimal and sexagesimal number systems. His arithmetic explains the division of fractions and the extraction of square and cubic roots (square root of 57,342; cubic root of 3, 652, 296) in an ...
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2nd millennium BC · 2000–1001 BC 20th century BC: 19th century BC: 18th century BC: ... 1st millennium BC · 1000–1 BC 10th century BC: 990s BC: 980s BC: 970s BC ...